GNU bug report logs - #63555
emacs 29 complains that it can't connect to the display

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Message #38 received at 63555 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Po Lu <luangruo <at> yahoo.com>
Cc: rpluim <at> gmail.com, phill <at> thesusis.net, 63555 <at> debbugs.gnu.org
Subject: Re: bug#63555: emacs 29 complains that it can't connect to the display
Date: Sat, 20 May 2023 11:16:11 +0300

> From: Po Lu <luangruo <at> yahoo.com>
> Cc: rpluim <at> gmail.com,  phill <at> thesusis.net,  63555 <at> debbugs.gnu.org
> Date: Sat, 20 May 2023 14:33:09 +0800
> 
> Eli Zaretskii <eliz <at> gnu.org> writes:
> 
> > Why cannot we "simulate -nw" where we issue the error message that we
> > cannot connect to the display server?  At that point, we presumably
> > already know that the default display could not be found.
> 
> That happens very late in the initialization process, in
> `normal-top-level'.

What function(s) is/are used at that point which tells us a GUI
session is impossible?  Can we invoke those same functions earlier
during startup to realize this fact where we still can start as -nw?

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